<style>
    html,body{
        margin: 0;
        min-width: 1000px;
    }
    .logo{
        text-align: center;
        line-height: 60px;
        color: #FFF;
        font-size: 24px;
        font-weight: bolder;
    }
    .el-header{
        background: rgb(84, 92, 100);
    }
</style>